Home / 35,420.55-48,878.78-20,302.37

Finding the Fourth Proportional to 35,420.55, 48,878.78 and 20,302.37

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Solution

The fourth proportional to 35,420.55, 48,878.78 and 20,302.37 is: 28,016.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.55 : 48,878.78 = 20,302.37 : x
  2. Step 2: Convert to fraction form
    35,420.55/48,878.78 = 20,302.37/x
  3. Step 3: Cross multiply
    35,420.55x = 48,878.78 × 20,302.37
  4. Step 4: Simplify right side
    35,420.55x = 992,355,076.71
  5. Step 5: Solve for x
    x = 992,355,076.71/35,420.55
  6. Step 6: Final answer
    x = 28,016.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.